Keshia Knight Pulliam's husband of only seven months, former football player Ed Hartwell, filed for divorce in July. The "Cosby Show" star said she was blindsided by the news which came soon after she announced she was pregnant with her first child.

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Lady Gaga said on July 20 that she and fiance Taylor Kinney were taking a break. The singer and the actor got engaged on Valentine's Day 2015.

"How to Get Away With Murder" co-star Liza Weil has split from her husband, "Scandal" actor Paul Adelstein. According to People, the couple, who wed in 2006, separated in January. They are the parents of a daughter, Josephine, 5.

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One day after their 10-year anniversary, actors Ben Affleck and Jennifer Garner confirmed on June 30 that they are filing for divorce. They've only recently started talking about it.

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Once called the Beyonce and Jay Z of country music, singers Miranda Lambert and Blake Shelton have split. The couple confirmed July 20 that they were ending their marriage after four years. Both have since moved on to new relationships.

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After 26 years of marriage, Narvel Blackstock and Reba McEntire divorced on October 28, after a separation of a few months, McEntire announced in late December. Though their marriage has ended, the couple will continue to work together. Blackstock is McEntire's manager.

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Olivier Martinez and Halle Berry announced October 27 that they've called it quits after two years of marriage. "It is with a heavy heart that we have come to the decision to divorce," the actors said in a joint statement.

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Actress Kaley Cuoco and her husband, Ryan Sweeting, called it quits in 2015 after nearly two years of marriage. The couple "mutually decided" to get a divorce after 21 months of marriage, a publicist for the actress said in a statement.

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"Mad Men" actor Jon Hamm and filmmaker Jennifer Westfeldt split in 2015, according to a statement the former couple provided to People magazine. "With great sadness, we have decided to separate, after 18 years of love and shared history," the pair said. "We will continue to be supportive of each other in every way possible moving forward." The couple was not married.

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Singer Avril Lavigne confirmed that she and hubby of two years Chad Kroeger separated. "It is with heavy heart that Chad and I announce our separation today," she said in 2015.

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Actress Megan Fox has filed for divorce from her husband of five years, Brian Austin Green, in 2015.

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Longtime loves Kermit the Frog and Miss Piggy announced August 4 that they had "made the difficult decision to terminate our romantic relationship." If this crazy couple can't make it work, what hope is there?

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Scott Disick and Kourtney Kardashian called it quits after nine years and three kids. According to E! (which hosts all things Kardashian), Kardashian decided to end it over the July Fourth weekend after photos surfaced of Disick with another woman.

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Amy and Matt Roloff, stars of TLC reality series "Little People, Big World," filed for divorce after 27 years of marriage.

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Actor Ed Asner has reportedly filed for divorce from wife Cindy Gilmore eight years after the couple first split. The pair married in 1998 and separated almost a decade later.

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After a year of "Conscious Uncoupling," Gwyneth Paltrow made her split with Chris Martin official, filing for divorce on April 20. She's seeking joint legal and physical custody of their two children. The A-list pair, who had been married for 10 years before separating in March 2014, reportedly took a "breakup-moon" in the Bahamas following their 2014 announcement.

Mandy Moore and Ryan Adams divorced six years after tying the knot, according to People magazine. "Mandy Moore and Ryan Adams have mutually decided to end their marriage," a representative for Moore said in a statement. "It is a respectful, amicable parting of ways, and both Mandy and Ryan are asking for media to respect their privacy at this time."

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Comedian and actor Chris Rock filed for divorce from his wife, Malaak. They have been married 19 years and have two children. "Chris Rock has filed for divorce from his wife, Malaak," Rock's attorney, Robert S. Cohen, said in a statement. "This is a personal matter and Chris requests privacy as he and Malaak work through this process and focus on their family."

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People reported that actress Helena Bonham Carter and her husband, director Tim Burton, called it quits after 13 years together. The pair, who worked together on films such as "Alice in Wonderland" and "Dark Shadows," "separated amicably earlier this year and have continued to be friends and co-parent their children," a rep told the magazine.

Kris Jenner filed for divorce from Bruce Jenner on September 22, 2014. The couple acknowledged that they separated in October. "We will always have much love and respect for each other. Even though we are separated, we will always remain best friends and, as always, our family will remain our No. 1 priority," they told E!.

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Neil Young had more than a wife in Pegi Young; he also had a musical collaborator and a muse for some of his most classic love songs. But according to Rolling Stone, Young filed for divorce from his wife of 36 years in July 2014.

Actors Evan Rachel Wood and Jamie Bell separated after nearly two years of marriage. The couple, who welcomed a son in July 2013, said in a statement that they plan to remain close friends.

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After a six-year relationship, Miranda Kerr and Orlando Bloom announced in October 2013 that they had decided to formally separate. TMZ indicated that the pair were planning to divorce. The couple, who share a son, said in a statement that they remain amicable.

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Movie veteran Clint Eastwood and his wife of 17 years, Dina, separated over the summer of 2013, according to People. They have one daughter together.

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George Clooney and Stacy Keibler were going strong -- and looking hot on the red carpet -- for two years. But in July 2013, their photogenic romance came to an end.

Julianne Hough and Ryan Seacrest decided to take a break in March 2013 after more than two years together, People reported. The duo's busy schedules were to blame, but they plan to stay friends, sources told the magazine.

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In September 2012, Will Arnett and Amy Poehler separated after nine years of marriage. They have two sons.

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Tom Cruise and Katie Holmes "amicably settled" their divorce in July 2012, just two weeks after Holmes filed for it, an attorney said. Holmes and Cruise, who were married for five years, have one daughter.

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Former California Gov. Arnold Schwarzenegger and Maria Shriver separated in May 2011 after 25 years of marriage. The public has since learned of Schwarzenegger's affair with the family's housekeeper that resulted in the birth of his fifth child.

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After almost seven years together, Kate Winslet and director Sam Mendes went their separate ways in March 2010. The couple said that the split was mutual and that they would continue raising their children together.

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Tom Cruise and Nicole Kidman collaborated on four films together, including the controversial "Eyes Wide Shut," during their 11-year marriage. The couple split in 2001.

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Susan Sarandon and Tim Robbins split in 2009 after 23 years together. The pair, who met on the set of "Bull Durham," have two sons but never married.

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Mia Farrow appeared in several of Woody Allen's films before the couple went their separate ways in 1992. The pair reportedly split after Farrow found out about Allen's sexual relationship with one of her adopted daughters, whom Allen married in 1997.

Reese Witherspoon and Ryan Phillippe were married for seven years before calling it quits in 2006. The pair, who have two children, finalized their divorce in 2008.

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Brad Pitt and Jennifer Aniston's seven-year romance came to an end in 2005. Speculation over whether Angelina Jolie had anything to do with the breakup added a juicy angle to the split.

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Perhaps Hollywood's happiest divorced couple, Bruce Willis and Demi Moore, split in 1998 after a 10-year relationship. They have three daughters.

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Story highlights

Hilary Duff says some songs on new album are very personal

She and husband Mike Comrie are separated

Duff's forthcoming album is her first in seven years

Hilary Duff says her new album is "very positive" but admits that it started out "a lot heavier and a lot darker" because of the separation from her husband, Mike Comrie.

"I'm separated from my husband right now, which has been a very difficult thing to go through," she told Billboard's "Pop Shop" podcast. "In the beginning, the album was a lot heavier and a lot darker, because I had to get that out. Once I did get that out, a lot of fun came."

Duff married Comrie, a former pro hockey player, in 2010 after dating for three years. Their son, Luca, was born in 2012. Duff and Comrie announced their separation in January.

Duff, 26, admits that she's "nervous" after being away from music for seven years. Her just-released single, "Chasing the Sun," is from her still-untitled album, which will be her first studio release since 2007's "Dignity."

She says she first started thinking of new material when she was pregnant with her son. After having the child and taking another year, she was even more anxious.

Hilary Duff and Mike Comrie separated this year.

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"I felt like I was missing a big part of myself," she said.

Duff established a successful singing career on the heels of her popular Disney show, "Lizzie McGuire," which aired from 2001 to 2004. She spent most of her teenage years touring and says that turning 20 was a big factor in leaving the road.

"It was time for me to be a person, and the break just ended up being a long time," she said.

One song on the album has to do with the loneliness she felt after being surrounded by dozens of people during her peak. Another song is a collaboration with Ed Sheeran.